Putra R, Tanjung AR, Renaldo N. Open Unemployment Rate Based on Age Group and Residence Area using Chi-square Analysis Period 2015-2018 . Reflection [Internet]. 2024 Sep. 30 [cited 2025 Mar. 10];2(1):20-5. Available from: http://firstcierapublisher.com/index.php/reflection/article/view/111